Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: WAC #31

Author: Dann Corbit

Date: 11:37:48 03/04/99

Go up one level in this thread


On March 04, 1999 at 13:56:12, Jeremiah Penery wrote:

>Here is the position:
>
>rb3qk1/pQ3ppp/4p3/3P4/8/1P3N2/1P3PPP/3R2K1 w - - bm Qxa8 d6 dxe6; id "WAC031";
>
>Here's the EPD output my modified Crafty produces:
>
>rb3qk1/pQ3ppp/4p3/3P4/8/1P3N2/1P3PPP/3R2K1 w - - acd 11; acn 5979643; acs 30; bm
>Qxa8 d6 dxe6; ce 411; id "WAC031"; pv g3 Bxg3 hxg3 Rb8 Qc7 exd5 Rxd5 a6 Nd4 Rc8
>Qb6 Rc1+;
>
>It likes the move g3 with a score of +4.11 after 30 seconds.  It also stays with
>this move if the search is done longer.  Is there anything wrong with the move,
>or is it really almost as good (or better?) than the three moves given?
Here is one line of the analysis from Project Apocalypse. (We typically run a
position several times -- especially test positions).
rb3qk1/pQ3ppp/4p3/3P4/8/1P3N2/1P3PPP/3R2K1 w - - acd 14; acn 106176097; acs 511;
bm Qxa8 d6 dxe6; ce 435; id "WAC.031"; pv g3 Bxg3 hxg3 exd5 Rxd5 Qb8 Qc6 a6 Rd7
Qe8 Qd5 Rc8 Ng5 Rc2 Nxf7 Rxb2;

One tip for finding out if the other positions are better is to actually select
them and let the program run for a very long time on the new positions.  If a
mate is found you can be fairly certain that the position was true and the
computer's first guess was wrong.  Sometimes you will also see a sudden huge
jump in ce when the new position is chosen instead of searching them all.  On
the other hand, sometimes the result is going to be indeterminate -- where it
would take a GM or an extrordinary computer to come to any sort of conclusion.
In fact, this very position is one in a set that is undergoing a very "special"
study right now.



This page took 0 seconds to execute

Last modified: Thu, 15 Apr 21 08:11:13 -0700

Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.